<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <title>Title</title>
</head>
<body>
<div th:fragment="mainContent">
    <head>
        <script type="text/javascript">
        window.location.href="/guard/main"
        </script>
</div>
</body>
</html>